| 手性溶剂-NMR法测定2,4-滴丙酸对映体纯度的定量分析 |
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| 引用本文： | 黄桂兰,李重九.手性溶剂-NMR法测定2,4-滴丙酸对映体纯度的定量分析[J].分析试验室,2006,25(3):42-45. |
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| 作者姓名： | 黄桂兰 李重九 |
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| 作者单位： | 1. 防化研究院第六研究所,北京,102205
2. 中国农业大学理学院应用化学系,北京,100094 |
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| 摘 要： | 研究了手性溶剂法测定2，4-滴丙酸的^1H、^13C谱，在满足NMR准确定量所要求的分离度和信噪比的条件下，能准确测定手性化合物的对映体纯度。比较了以对映体百分含量（R％）和对映体过量（ee）表示手性农药的对映体纯度的差别，发现以对映体百分含量代替对映体过量来表示手性农药的对映体纯度更为准确。
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| 关 键 词： | 对映体纯度 手性溶剂 2 4-滴丙酸 |
| 文章编号： | 1000-0720（2006）03-042-04 |
| 收稿时间： | 04 4 2005 12:00AM |
| 修稿时间： | 2005-04-042005-05-20 |
Quantitative determination of the enantiomeric purity of dichlorprop by NMR spectroscopy utilizing a chiral solvent |
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| Huang Gui-lan,Li Chong-jiu.Quantitative determination of the enantiomeric purity of dichlorprop by NMR spectroscopy utilizing a chiral solvent[J].Chinese Journal of Analysis Laboratory,2006,25(3):42-45. |
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| Authors: | Huang Gui-lan Li Chong-jiu |
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| Institution: | 1. The Sixth Research Center, Institute of Chemical Defence, Beijing 102205; 2. Applied Chemistry Department, College of Applied Chemistry, China Agriculture University, Beijing 100094 |
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| Abstract: | The~1H and~(13)C NMR of dichlorprop were investigated utilizing chiral solvent,under the conditions that the objective peaks were separated entirely and the signal/noise ratio was enough,an accurate quantitative result was obtained in the determination of the enantiomeric purity of the chiral compounds. A more accurate result was achieved by using the enantiomeric composition(R%) instead of enantiomer excess(ee) to express the enantiomer purity of chiral compounds. |
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| Keywords: | 1H NMR 13 CNMR |
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